• Off—The unit identification function is not
in use.
• Blue, blinking—The unit identification
function is activated.
Rear unit identification
5
AC power supplies:
• Off—No AC input (12 V main power off,
12 V standby power off).
• Green, blinking—12 V main power off; 12
V standby power on.
• Green, solid—12 V main power on; 12 V
standby power on.
• Amber, blinking—Warning threshold
detected, but 12 V main power on.
• Amber, solid—Critical error detected; 12
V main power off (for example,
over-current, over-voltage, or
over-temperature failure).
DC power supplies:
• Off—No DC input (12 V main power off,
12 V standby power off).
• Green, blinking—12 V main power off; 12
V standby power on.
• Green, solid—12 V main power on; 12 V
standby power on.
• Amber, blinking—Warning threshold
detected, but 12 V main power on.
• Amber, solid—Critical error detected; 12
V main power off (for example,
over-current, over-voltage, or
over-temperature failure).
Power supply status (one LED for each
power supply unit)
6
Internal Diagnostic LEDs
The server has internal fault LEDs for CPUs, DIMMs, and fan modules.
Cisco Secure Network Server 3600 Series Appliance Hardware Installation Guide
9
Cisco Secure Network Server 3600 Series Appliance Overview
Internal Diagnostic LEDs
